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{
"metadata": {
"name": "",
"signature": "sha256:c178e1bd9fc41dc391bdd628b47b12bf3cc848e75815d75ccf67815a215adacd"
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 18 :\n",
"Composites"
]
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 18.1 Page No : 610"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\t\t\t\n",
"import math \n",
"\n",
"# Variables\n",
"E_f = 69;\t\t\t#modulus of elasticity in GPa\n",
"V_f = 40./100;\t\t\t#Volume of glass fibres %\n",
"E_m = 3.4;\t\t\t#modulus (in GPa)\n",
"V_m = 60./100;\t\t\t#Volume of polyester remath.sin %\n",
"\n",
"# Calculation\n",
"E_cl = E_m*V_m+E_f*V_f;\t\t\t#modulus of elasticity (in Gpa)\n",
"\n",
"# Results\n",
"print 'Modulus of elasticity is %.0f Gpa'%(E_cl)\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Modulus of elasticity is 30 Gpa\n"
]
}
],
"prompt_number": 2
},
{
"cell_type": "heading",
"level": 2,
"metadata": {},
"source": [
"Example 18.2 Page No : 611"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\t\t\t\n",
"import math \n",
"\n",
"# Variables\n",
"E_f = 69;\t\t\t#modulus of elasticity in GPa\n",
"V_f = 40./100;\t\t\t#Volume of glass fibres %\n",
"E_m = 3.4;\t\t\t#modulus (in GPa)\n",
"V_m = 60./100;\t\t\t#Volume of polyester remath.sin %\n",
"\n",
"# Calculation\n",
"E_cl = E_m*E_f/(E_m*V_f+E_f*V_m);\t\t\t#modulus of elasticity when the stress is applied perpendicular to the direction of the fibre alignment(in Gpa)\n",
"\n",
"# Results\n",
"print 'modulus of elasticity when the stress is applied perpendicular to the direction of the fibre alignment = %.1f Gpa'%E_cl\n"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"modulus of elasticity when the stress is applied perpendicular to the direction of the fibre alignment = 5.5 Gpa\n"
]
}
],
"prompt_number": 1
}
],
"metadata": {}
}
]
}
|
